PPC. Bug error GoTOJob when job is null.

Related Work Items: #8486

1 files changed, 7 insertions, 1 deletions

diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/MachineStatusViewVM.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/MachineStatusViewVM.cs
index 1182ba50e..68c0f1867 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/MachineStatusViewVM.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/MachineStatusViewVM.cs
@@ -45,6 +45,7 @@ namespace Tango.PPC.UI.ViewModels
                 if (_job == null)
                     IsDyeingProcess = false;
                 RaisePropertyChangedAuto();
+                InvalidateRelayCommands();
             }
         }
 
@@ -243,7 +244,7 @@ namespace Tango.PPC.UI.ViewModels
 
             StopCommand = new RelayCommand(StopJob, () => CanStopped());
             AbortCommand = new RelayCommand(AbortJob, () => CanStopped());
-            GoToJobCommand = new RelayCommand(GoToJob);
+            GoToJobCommand = new RelayCommand(GoToJob, () => IsEnableGoToJob());
             JobStatusViewCommand = new RelayCommand(JobStatusView);
             OverviewViewCommand = new RelayCommand(OverviewView);
             ClearAllNotificationsCommand = new RelayCommand(ClearAllNotifications);
@@ -467,6 +468,11 @@ namespace Tango.PPC.UI.ViewModels
 
         #region Methods
 
+        private bool IsEnableGoToJob()
+        {
+            return Job != null && _handler != null;
+        }
+
         private void GoToJob()
         {